[TASK] Release 1.4.3

Change-Id: Iead4bb81ef9f8dc4fae3b90411981e6eb1d8417d
Reviewed-on: http://review.typo3.org/34566
Reviewed-by: Tim Lochmüller <tim@fruit-lab.de>
Tested-by: Tim Lochmüller <tim@fruit-lab.de>